6S. CEROPTBRIS. 



exture coriaceous; rachis naked; upper surface naked, lower densely coated 

 ilh white, waxy powder. Sori linear, forked, at length filling up nearly the whole 

 nder surface of the lobes, the ripe sporangia visihle as blackish points amongst 

 tie powder. 



Var. chrysophylla : Powder yellow. 



Much cultivated, and escaped from gardens: very common now in the neigh- 

 mrhood of european settlements. — Orig. loc: Trop: America, West. Africa, 

 fatal. 



(3) C chrysosora, v. A. «. it.; Gymnogramme chrysosora, Bk., 

 ourn. of Linn. Soc, Bot. XXIV, 260; C. Ghp., Ind . Fil . 



Rhizome short-creeping. Stipes approximate, castaneous, naked, + 10 — 15 

 .M. long, the fertile fronds. on the longest stipes. Fronds moderately firm, 

 ather rigid, 7 — 10 c.M. long. Lowest pinnae much the largest and most 

 ompound, ultimate segments obovate-cuneate, 2 — S'/j m.M. broad. Both 

 urfaces naked. Fertile fronds similar, but with the under surface densely 

 oated with golden, waxy powder. Sori at length confluent, covering 

 early the whole breadth of the fertile segments, but do not reach the tips. 



Borneo. 



64. .AJVTK.OF»HYUM, Kaulfttts. 



Sori long, .linear, carried along the veins, irregularly longitudinal or sub- 

 labellate, superficial or more commonly immersed, free or reticulate but often 

 mperfeclly. Paraphyses present. No indusium. 



Rhizome short-creeping. Fronds simple, stalked or sessile, not articulate 

 the rhizome; veins copiously anastomosing, forming longitudinally elongated, 

 t hexagonal areolae; costa wanting, at least in the upper half of the frond. 

 Ibrist, Farnkr. d. Erde, fig. 141 k 142. (*) 



Pantropical. 



I. Sori marginal or very near the margin, nut scattered over the frond. 



%. Sori quite marginal, in i line on each side. (1) A. marginale. 



$.§. Sori near the margin, in 1 1—3 approximate lines on each side. 



(2) A. Clementis. 

 i.a. Sori not marginal, nor very near the margin, more or less scattered over 



the frond. 



(') The species are variable and not always clearly distinguished. 

 FttiCKS, 34 



